CN218304715U

CN218304715U - Noise-reducing dust collector

Info

Publication number: CN218304715U
Application number: CN202222130785.7U
Authority: CN
Inventors: 叶敏聪; 赵坚强
Original assignee: Guangdong Delma Technology Co Ltd
Current assignee: Guangdong Delma Technology Co Ltd
Priority date: 2022-08-12
Filing date: 2022-08-12
Publication date: 2023-01-17
Anticipated expiration: 2032-08-12

Abstract

The application discloses a noise-reducing dust collector which comprises a shell, a fan and a silencing frame, wherein the silencing frame is arranged in the shell, a fixing groove is formed in the silencing frame, and the fan is arranged in the fixing groove; the amortization frame a plurality of that has closely arranged with the parallel hole of making an uproar of falling of fan, the outer wall extension of amortization frame has the sealing ring, the sealing ring with the inner wall butt of casing, so that the amortization frame with form the sealed chamber between the inner wall of casing to solved inspiratory air current and produced strong vibrations in the dust catcher inside passage, the inspiratory air current of rotation of high-speed electric fan also can produce strong vibrations simultaneously, thereby produce great noise, seriously influenced use experience, brought inconvenient technical problem for the user.

Description

Noise-reducing dust collector

Technical Field

The application relates to the technical field of household appliances, in particular to a noise reduction dust collector.

Background

The dust collector can be divided into a vertical type, a horizontal type and a portable type according to the structure, and the working principle of the dust collector is that a motor rotates at a high speed, air negative pressure is generated in a sealed shell, dust is absorbed, and the dust collection effect is achieved; the main function of the dust collector is to suck dust on the ground or in gaps, suck air containing dirt into the dust collector, separate the air and then discharge the air from an air outlet. The sucked air flow generates strong vibration in the inner channel of the dust collector, and meanwhile, the sucked air flow can also generate strong vibration by the rotation of the high-speed electric fan, so that larger noise is generated, the use experience is seriously influenced, and inconvenience is brought to a user.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem and provide a dust catcher of making an uproar falls, the amortization frame performance vibration/noise reduction of this application dust catcher plays vibration/noise reduction effect, has weakened the produced noise intensity when the dust catcher moves.

In order to achieve the above purpose, the technical scheme of the utility model has:

a noise reduction dust collector comprises a shell, a fan and a silencing frame, wherein the silencing frame is arranged in the shell, a fixing groove is formed in the silencing frame, and the fan is arranged in the fixing groove; the noise reduction frame is closely arranged with the noise reduction holes parallel to the axis of the fan, the outer wall of the noise reduction frame extends to form a sealing ring, and the sealing ring is abutted to the inner wall of the shell, so that a sealing cavity is formed between the noise reduction frame and the inner wall of the shell.

In the application, the fan is arranged in the shell after being installed in the fixing groove of the silencing frame, the fan is surrounded by the silencing frame, and the sealing ring arranged on the outer wall of the silencing frame is abutted to the inner wall of the shell, so that the vibration intensity of the fan is reduced during operation, the fan is not easy to collide with other parts in the shell, and a sealing cavity formed between the silencing frame and the inner wall of the shell isolates partial noise transmitted outwards by the fan, so that the generated noise intensity is weakened; on the other hand, the setting of making an uproar hole falls under guaranteeing sufficient structural strength, has reduced the holistic weight of dust catcher promptly, and is lighter during the use, falls the hole of making an uproar simultaneously and has the effect of making an uproar, and the air current enters into to fall the downthehole of making an uproar in one side of fan, and the downthehole production of making an uproar, absorption, amortization fall in a plurality of, reach good noise reduction effect, further reduce the produced noise of fan operation.

Preferably, the fan is provided with an air inlet, the bottom of the fixing groove is provided with an arc-shaped groove of which the size gradually increases towards the end part of the silencing frame, and the air inlet extends into the arc-shaped groove; and the side wall of the arc-shaped groove is provided with a pressure relief hole communicated with the fixing groove. The wind pressure generated at the arc-shaped groove is output through the pressure relief hole, and the noise generated between the air inlet and the arc-shaped groove is reduced.

Preferably, the bottom of the side wall of the fan extends towards the air inlet to form a plurality of connecting plates, and a plurality of exhaust grooves are formed in a separated mode; the air exhaust groove is abutted against the bottom of the fixing groove, and the pressure relief hole is communicated with the air exhaust groove.

Preferably, the noise reduction hole is formed in the bottom of the fixing groove, close to the pressure relief hole.

Preferably, the noise reduction holes are honeycomb-shaped, the noise reduction holes penetrate through the upper end and the lower end of the noise reduction frame, and a plurality of circular through holes are arranged between the noise reduction holes.

Preferably, the top and the middle of the outer wall of the silencing frame are both provided with the sealing rings, and a plurality of sealing cavities are formed between the sealing rings and the inner wall of the shell.

Preferably, the silencing frame is made of EVA materials.

Preferably, the housing is provided with a vent corresponding to the air inlet, and the peripheral wall of the vent is provided with an arc-shaped protrusion in a surrounding manner. The arc-shaped bulge forms an air flow buffer area, the moving direction of air flow is changed, stable annular circulating air flow is formed at the arc-shaped bulge, noise generated by disordered air flow is reduced, and the noise reduction effect is achieved.

Preferably, an inner annular opening with a diameter gradually reduced toward the inside of the shell is arranged in the middle of the ventilation opening, and a reinforcing rib is connected between the inner annular opening and the arc-shaped protrusion.

Preferably, the filter further comprises a movable shell, the movable shell is clamped on the shell, a filter cavity is formed inside the movable shell, and a filter screen is arranged at a position close to the ventilation opening.

Drawings

FIG. 1 is a sectional view of the noise reduction vacuum cleaner according to the present invention;

fig. 2 is an exploded view of the blower and the silencing frame provided by the present invention;

fig. 3 is a schematic structural diagram of the housing provided by the present invention;

fig. 4 is a bottom structure view of the silencing frame provided by the present invention;

fig. 5 is a schematic structural diagram of the air inlet of the fan provided by the present invention.

Detailed Description

The embodiment of the application provides a dust catcher of making an uproar falls for solve inspiratory air current and produce strong vibrations in dust catcher inner passage, high-speed electric fan's the inspiratory air current of rotation also can produce strong vibrations simultaneously, thereby produce great noise, seriously influenced use experience, brought inconvenient technical problem for the user.

In order to make the objects, features and advantages of the present invention more apparent and understandable, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the embodiments described below are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

Referring to fig. 1 to 5, the present application provides a noise reduction vacuum cleaner, including a housing 100, a fan 200, and a silencing frame 300, wherein the silencing frame 300 is installed inside the housing 100, the silencing frame 300 is provided with a fixing groove 310, and the fan 200 is installed in the fixing groove 310; the noise reduction holes 320 parallel to the axis of the fan 200 are closely arranged in the noise reduction frame 300, the sealing ring 330 extends from the outer wall of the noise reduction frame 300, and the sealing ring 330 abuts against the inner wall of the casing 100, so that a sealing cavity 340 is formed between the noise reduction frame 300 and the inner wall of the casing 100.

Specifically, the silencing frame 300 is made of EVA material and has certain elasticity and shock absorption, the fixing groove 310 of the silencing frame 300 is matched with the shape of the fan 200, the fan 200 is inserted into the fixing groove 310, the body of the fan is surrounded by the silencing frame 300, the outer circumferential wall of the silencing frame 300 is extended with an arc-shaped sealing ring 330, the position of the silencing frame 300 is stabilized by the abutting of the sealing ring 330 against the inner wall of the casing 100, so that the vibration intensity of the fan 200 during operation is reduced, and the fan is not easy to collide with adjacent parts, the space between the outer wall of the silencing frame 300 and the inner wall of the casing 100 forms a sealing cavity 340 through the sealing ring 330, the sealing cavity 340 can isolate part of noise generated by the fan 200, and further weaken the noise intensity generated during operation of the dust collector; the noise reduction holes 320 are tightly arranged around the fixing groove 310 on the main body of the noise reduction frame 300, and a certain distance is formed between the noise reduction holes 320, so that the structural strength of the noise reduction frame is ensured, and airflow and sound waves generated by the fan 200 enter the noise reduction holes 320 to rebound, absorb and reduce noise, thereby achieving the effect of noise reduction.

Further, the fan 200 is provided with an air inlet 210, the bottom of the fixing groove 310 is provided with an arc-shaped groove 350 gradually increasing towards the end of the silencing frame 300, and the air inlet 210 extends into the arc-shaped groove 350; the side wall of the arc-shaped groove 350 is provided with a pressure relief hole 351 communicating with the fixing groove 310. A plurality of connecting plates 220 extend from the bottom of the side wall of the fan 200 to the air inlet 210, and are separated to form a plurality of exhaust grooves 230; the discharge groove 230 abuts against the bottom of the fixing groove 310, and the pressure relief hole 351 communicates with the discharge groove 230. An arc-shaped groove 350 is formed downwards at the bottom of the fixing groove 310, the caliber of the arc-shaped groove 350 is gradually increased towards the end of the silencing frame 300, the air inlet 210 of the fan 200 extends into the arc-shaped groove 350 through the bottom of the fixing groove 310, the side wall of the air inlet 210 is tightly matched with the bottom of the fixing groove 310, so that the joint of the arc-shaped groove 350 and the fixing groove 310 is in a sealed state, the pressure relief hole 351 formed in the side wall of the arc-shaped groove 350 is circular and is communicated to the fixing groove 310, and air pressure formed by the air inlet 210 in the arc-shaped groove 350 is output through the pressure relief hole 351; the lateral wall bottom of fan 200 toward middle shrink formation diameter less air intake 210, a plurality of connecting plates 220 have been erect between the lateral wall of lateral wall bottom and air intake 210, separate this region for a plurality of exhaust grooves 230, because pressure release hole 351 and exhaust groove 230 intercommunication, the bottom of fixed slot 310 is close to pressure release hole 351 and is equipped with the hole of making an uproar 320 of falling, thereby the wind pressure that arc wall 350 department formed exports through pressure release hole 351, enter into in the hole of making an uproar 320 falls in the evacuation groove, further reduce the produced noise of wind pressure between arc wall 350 and the air intake 210.

Furthermore, the noise reduction holes 320 are honeycomb-shaped, the noise reduction holes 320 penetrate through the upper end and the lower end of the silencing frame 300, and a plurality of circular through holes 360 are arranged between the noise reduction holes 320. The middle part of the silencing frame 300 is a fixing groove 310, other positions of the main body are surrounded by a plurality of rows of honeycomb-shaped noise reduction holes 320, a circular through hole 360 is inserted between two adjacent rows of noise reduction holes 320, the bottom of the silencing frame 300 has a certain space, airflow generated by the fan 200 enters the noise reduction holes 320 and the through hole 360 in the space, and the noise reduction holes 320 and the through hole 360 both penetrate through the end parts of the two sides of the silencing frame 300 to increase the noise reduction effect, of course, the noise reduction holes 320 can also be in other shapes with the noise reduction function; through-hole 360's setting can distribute more and exert the hole of making an uproar effect of making an uproar in the interval of making an uproar hole 360 of making an uproar, eliminates the noise of different frequencies for amortization frame 300 both has sufficient structural strength, can reduce holistic weight and good noise reduction effect again in furthest.

Still further, the top and middle parts of the outer wall of the sound-deadening frame 300 are provided with sealing rings 330, and a plurality of sealing cavities 340 are formed between the sealing rings and the inner wall of the casing 100. Sealing ring 330 is circular-arc, and the outer wall of amortization frame 300 is located to the ring, and in this embodiment, the outer wall top and the middle part of amortization frame 300 all are equipped with sealing ring 330, because amortization frame 300 is made for the EVA material, have certain elasticity, utilize the inseparable cooperation of sealing ring 330 with the casing 100 inner wall, interval between the two forms a plurality of sealed chambeies 340, and the setting of a plurality of sealing rings 330 guarantees the installation stability of amortization frame 300, reduces intensity of vibration.

Still further, the housing 100 is provided with a ventilation opening 110 corresponding to the air inlet 210, and the peripheral wall of the ventilation opening 110 is provided with an arc-shaped protrusion 111. An inner annular opening 120 with a diameter gradually reduced toward the inside of the casing 100 is disposed at the middle of the ventilation opening 110, and a reinforcing rib 130 is connected between the inner annular opening 120 and the arc-shaped protrusion 111. The bottom of the casing 100 is provided with the vent 110, the vent 110 corresponds to the air inlet 210 of the fan 200, the air flow of the fan 200 enters from the vent 110, because the peripheral wall of the vent 110 is provided with the arc-shaped protrusion 111, the air flow changes the movement direction at the arc-shaped protrusion 111 to form the air flow in the annular circulation, the inside of the arc-shaped protrusion 111 corresponds to the side wall of the arc-shaped groove 350, and the side wall of the air inlet 210 is arc-shaped, the air flow forms the air flow in the annular circulation with the side wall of the air inlet 210 after entering the arc-shaped groove 350, the noise generated by the disorder of the air flow at the position is weakened, and the noise reduction and silencing effects are achieved.

Furthermore, the air conditioner further comprises a movable shell 400, the movable shell 400 is clamped in the casing 100, a filter cavity 410 is arranged inside the movable shell 400, and a filter screen 420 is arranged at a position close to the ventilation opening 110. The movable housing 400 is fastened to the lower side of the ventilation opening 110 of the housing 100, and is provided with a filter chamber 410 inside, and a large particle filter structure is provided, and a filter screen 420 is provided near the ventilation opening 110, so that dust with smaller particles can be filtered, and the sucked dust is filtered and stored in the filter chamber 410, thereby preventing the dust from entering the fan 200 to affect the operation.

In this embodiment, the bottom end of the sidewall of the fan 200 abuts against the fixing groove 310 of the silencing frame 300, and the sealing ring 330 of the silencing frame 300 cooperates with the inner wall of the casing 100 to achieve the damping effect, so that the airflow generated by the fan 200 enters the honeycomb-shaped noise reduction holes 320 from the upper end space of the silencing frame 300, is reflected, absorbed and silenced in the noise reduction holes 320, and meanwhile, the sealing cavity 340 isolates part of the operating noise of the fan 200, thereby greatly reducing the noise generated during the operation of the vacuum cleaner; the air inlet 210 of the fan 200 extends into the arc-shaped groove 350, the air pressure generated at the position is output to the air exhaust groove 230 through the pressure relief hole 351 of the side wall and then enters the noise reduction hole 320, the noise intensity generated by the air pressure at the arc-shaped groove 350 is reduced, in addition, the movement direction of the air flow filtered by the movable shell 400 is changed at the arc-shaped bulge 111 of the air vent 110, stable air flow input is formed, and the air flow also forms stable annular circulating air flow with the side wall of the air inlet 210 after entering the arc-shaped groove 350, the noise generated by the irregular vortex of the air flow is absorbed, the noise reduction effect is multiple, the noise is small when the dust collector operates, and the use experience of a user is improved.

Variations and modifications to the above-described embodiments may occur to those skilled in the art, in light of the above teachings and teachings. Therefore, the present invention is not limited to the specific embodiments disclosed and described above, and some modifications and changes to the present invention should fall within the protection scope of the claims of the present invention. Furthermore, although specific terms are employed herein, they are used in a generic and descriptive sense only and not for purposes of limitation.

Claims

1. A noise reduction dust collector comprises a shell, a fan and a silencing frame, wherein the silencing frame is arranged in the shell; the noise reduction frame is closely arranged with the noise reduction holes parallel to the axis of the fan, the outer wall of the noise reduction frame extends to form a sealing ring, and the sealing ring is abutted to the inner wall of the shell, so that a sealing cavity is formed between the noise reduction frame and the inner wall of the shell.

2. The noise-reducing dust collector of claim 1, wherein the fan is provided with an air inlet, an arc-shaped groove gradually increasing towards the end of the silencing frame is formed in the bottom of the fixing groove, and the air inlet extends into the arc-shaped groove; and the side wall of the arc-shaped groove is provided with a pressure relief hole communicated with the fixing groove.

3. The noise reduction dust collector of claim 2, wherein a plurality of connecting plates extend from the bottom of the side wall of the fan to the direction of the air inlet, and the connecting plates are separated to form a plurality of air discharge grooves; the air exhaust groove is abutted against the bottom of the fixing groove, and the pressure relief hole is communicated with the air exhaust groove.

4. The noise-reducing vacuum cleaner of claim 2, wherein the noise-reducing hole is formed in the bottom of the fixing groove near the pressure-releasing hole.

5. The noise reduction dust collector of claim 2, wherein the noise reduction holes are honeycomb-shaped, the noise reduction holes penetrate through the upper end and the lower end of the silencing frame, and a plurality of circular through holes are arranged among the noise reduction holes.

6. The noise reduction dust collector of claim 1, wherein the sealing rings are arranged at the top and the middle of the outer wall of the silencing frame, and a plurality of sealing cavities are formed between the sealing rings and the inner wall of the shell.

7. The noise reduction dust collector of claim 1, wherein the silencing frame is made of EVA (ethylene vinyl acetate).

8. The noise-reducing dust collector of claim 2, wherein the housing is provided with a ventilation opening corresponding to the air inlet, and the peripheral wall of the ventilation opening is annularly provided with an arc-shaped protrusion.

9. The noise-reducing dust collector of claim 8, wherein an inner annular opening gradually reducing towards the inside of the housing is formed in the middle of the ventilation opening, and a reinforcing rib is connected between the inner annular opening and the arc-shaped protrusion.

10. The noise-reducing dust collector of claim 8, further comprising a movable shell, wherein the movable shell is clamped on the shell, a filter cavity is arranged inside the movable shell, and a filter screen is arranged at a position close to the ventilation opening.